Reinforced building-block for circular walls.



J. J. RAYNER.

REINFORCED BUILDING BLOCK FOR CIRCULAR WALLS.

APPLICATION FILED 0012a, 1912. RENEWED JAN. 23, 1914.

1 109,248, Patented Sept. 1, 1914.

"'IIlt IIIHH "NINE WITNES 5 J RA YNER INVENTOR m BY MW ATTORNEY UNITED STATES PATENT OFFICE.

JOHN J. RAYNER, OF WASHINGTON TOWNSHIP, CARROLL COUNTY, MISSOURI, AS-

SIGNOR TO 0. S. RAYNER, F BRAYMER, MISSOURI.

Specification of Letters Patent.

- REINFORCED BUILDING-BLOCK FOR CIRCULAR WALLS.

Patented Sept. 1, 1914.-

Application filed October 28, 1912, Serial No. 728,276. Renewed January 23, 1914. Seriafi No. 813,977.

To all whom it concern Be it known that I, JOHN J. Rarnnma citizen of the United States, residing 1n' g -"Washington township, in the county of Carroll and State of Missouri, have invented newand useful Improvements in Reinforced Building Blocks for Circular Walls, of which the following is a specification.

' My invention relates to reinforced building blocks for circular walls for use in the construction of silos, tanks, cisterns, reservoirs, and the like. 7

The object of my invention is to provides. reinforced building block, which when laid in a circular wall, will effectively cooperate with similar blocks for the reinforcement of the entire structure.

The preferred embodiment of the invention is hereinafter described and illustrated in the accompanying drawings.

In the drawings :-Figure l is a perspective view of several building blocks laid in a wall. Fig. 2 is a plan view .of the reinforced building block. Fig. 3 is an elevation of the reinforced building block.

Referring to the drawings, 1 designates an 'arcuate building block having air spaces 2 divided by partition 'wall 3. The several portions of. arcuate building block 1 are designated as follows :4:-is an en ce, 6 is the other end face, 7 is the arcuateinner surface, 8'is the arcuate outer surface, and 9 and 10 are chamfered end surfaces.

Embedded in the building block 1 between arcuate outer surface 8 and the air spaces 2 is an arcuate reinforcing rod 11, having an eye 12 protruding from chamfered end surface 9 and-a hook 13protruding from chainfered end surface 10.:- p

The blocks are preferably formed of ce-' ment, concrete, or similar plastic material, and are positioned in the wall by breaking joints in the usual manner.

, In laying the blocks in the wall, end face 4 of one block is laid adjacent to end face 5 of another block, and hook 13 of one block is pressed through eye 12 of the adjacent block. Hook 13 is then closed, forming an eye, and effectively joining the blocks together. Thespaces formed by chamfered end. surfaces 9 and 10 may then be filled with concrete, or the like, for the protection of the joint.

. It will be seen from the foregoing description that mv invention provides a reinforced building block 'which will cooperate effectively with similar building blocks for the reinforcement of a circular wall.

It is clear that changes in the details of construction may be made without departing from the spirit and scope of my invention. a

Having thus described my invention, what I claim is .1. The combination in a reinforced building block for circular walls. of an arcuate building block having chamfered end faces, an arcnate reinforcing rod embedded in said arcuat'e building block, said arcuate reinforcing rod having a hook protruding from one of said chamfered end faces and an eye protruding from the other. said hook being adapted to enter an. eye protruding from the chainfered end face of an adjacent block, and said eye being adapted to receive a hook protruding from the chamfcred end face of another adjacent block, substantially as described.

2. The combination ina reinforced building block for circular walls, of an arcuate building block having chamfered end faces, a hook protruding from one of said chamfered end faces, an eye protrudingfrom the other of said chamfered end faces, and an arcuate reinforcing rod formed integral with and connecting said hook and eye, substantially as described.

JOHN J. RAYNER. Witnesses:

FRANCES HERNDON,

E. A. STAUFFER. 

